./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c0d1f9cb4a655c19b11c3c45ae32d6ab056e5c06bd3297b1881af45946419011 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:11:14,138 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:11:14,237 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:11:14,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:11:14,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:11:14,276 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:11:14,279 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:11:14,279 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:11:14,280 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:11:14,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:11:14,285 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:11:14,285 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:11:14,285 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:11:14,286 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:11:14,286 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:11:14,287 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:11:14,289 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:11:14,289 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:11:14,289 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:11:14,290 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:11:14,290 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:11:14,291 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:11:14,291 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:11:14,292 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:11:14,292 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:11:14,293 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:11:14,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:11:14,294 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:11:14,295 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:11:14,295 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:11:14,296 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:11:14,296 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:11:14,297 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:11:14,298 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:11:14,298 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:11:14,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:11:14,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:11:14,299 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:11:14,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:11:14,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:11:14,300 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:11:14,300 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:11:14,300 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:11:14,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:11:14,301 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:11:14,301 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:11:14,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:11:14,301 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0d1f9cb4a655c19b11c3c45ae32d6ab056e5c06bd3297b1881af45946419011 [2024-11-09 05:11:14,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:11:14,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:11:14,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:11:14,676 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:11:14,678 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:11:14,680 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound100.c Unable to find full path for "g++" [2024-11-09 05:11:16,789 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:11:17,015 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:11:17,016 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound100.c [2024-11-09 05:11:17,030 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/data/91100ed63/e29569ff32c748c5ae3569184dd0dd30/FLAG3cde6c257 [2024-11-09 05:11:17,052 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/data/91100ed63/e29569ff32c748c5ae3569184dd0dd30 [2024-11-09 05:11:17,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:11:17,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:11:17,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:11:17,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:11:17,066 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:11:17,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:11:17" (1/1) ... [2024-11-09 05:11:17,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d046c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:17, skipping insertion in model container [2024-11-09 05:11:17,068 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:11:17" (1/1) ... [2024-11-09 05:11:17,096 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:11:17,355 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound100.c[537,550] [2024-11-09 05:11:17,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:11:17,412 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:11:17,436 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound100.c[537,550] [2024-11-09 05:11:17,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:11:17,483 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:11:17,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:17 WrapperNode [2024-11-09 05:11:17,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:11:17,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:11:17,486 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:11:17,486 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:11:17,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:17" (1/1) ... [2024-11-09 05:11:17,503 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:17" (1/1) ... [2024-11-09 05:11:17,526 INFO L138 Inliner]: procedures = 14, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2024-11-09 05:11:17,527 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:11:17,528 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:11:17,529 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:11:17,529 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:11:17,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:17" (1/1) ... [2024-11-09 05:11:17,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:17" (1/1) ... [2024-11-09 05:11:17,544 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:17" (1/1) ... [2024-11-09 05:11:17,546 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:17" (1/1) ... [2024-11-09 05:11:17,554 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:17" (1/1) ... [2024-11-09 05:11:17,561 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:17" (1/1) ... [2024-11-09 05:11:17,562 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:17" (1/1) ... [2024-11-09 05:11:17,566 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:17" (1/1) ... [2024-11-09 05:11:17,568 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:11:17,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:11:17,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:11:17,574 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:11:17,575 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:17" (1/1) ... [2024-11-09 05:11:17,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:11:17,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:11:17,619 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:11:17,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:11:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:11:17,668 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:11:17,668 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:11:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:11:17,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:11:17,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:11:17,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:11:17,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:11:17,761 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:11:17,765 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:11:17,980 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-09 05:11:17,981 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:11:18,049 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:11:18,049 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:11:18,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:11:18 BoogieIcfgContainer [2024-11-09 05:11:18,050 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:11:18,052 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:11:18,053 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:11:18,056 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:11:18,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:11:17" (1/3) ... [2024-11-09 05:11:18,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15344f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:11:18, skipping insertion in model container [2024-11-09 05:11:18,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:17" (2/3) ... [2024-11-09 05:11:18,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15344f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:11:18, skipping insertion in model container [2024-11-09 05:11:18,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:11:18" (3/3) ... [2024-11-09 05:11:18,060 INFO L112 eAbstractionObserver]: Analyzing ICFG lcm2_unwindbound100.c [2024-11-09 05:11:18,081 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:11:18,081 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:11:18,167 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:11:18,176 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@519f9f1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:11:18,176 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:11:18,180 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 05:11:18,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 05:11:18,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:18,191 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:11:18,191 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:11:18,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:18,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1594604368, now seen corresponding path program 1 times [2024-11-09 05:11:18,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:11:18,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850123219] [2024-11-09 05:11:18,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:18,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:11:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:18,540 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:11:18,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:11:18,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850123219] [2024-11-09 05:11:18,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850123219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:11:18,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:11:18,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:11:18,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349570226] [2024-11-09 05:11:18,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:11:18,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:11:18,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:11:18,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:11:18,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:11:18,599 INFO L87 Difference]: Start difference. First operand has 21 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:11:18,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:11:18,648 INFO L93 Difference]: Finished difference Result 34 states and 47 transitions. [2024-11-09 05:11:18,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:11:18,655 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 19 [2024-11-09 05:11:18,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:11:18,667 INFO L225 Difference]: With dead ends: 34 [2024-11-09 05:11:18,671 INFO L226 Difference]: Without dead ends: 19 [2024-11-09 05:11:18,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:11:18,681 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:11:18,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:11:18,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-09 05:11:18,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-09 05:11:18,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 05:11:18,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2024-11-09 05:11:18,736 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 19 [2024-11-09 05:11:18,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:11:18,741 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2024-11-09 05:11:18,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:11:18,742 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2024-11-09 05:11:18,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 05:11:18,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:18,745 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:11:18,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:11:18,746 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:11:18,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:18,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1598528367, now seen corresponding path program 1 times [2024-11-09 05:11:18,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:11:18,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137125781] [2024-11-09 05:11:18,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:18,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:11:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:11:18,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [776612023] [2024-11-09 05:11:18,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:18,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:11:18,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:11:18,855 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:11:18,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:11:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:19,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 05:11:19,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:19,284 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:11:19,284 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:11:19,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:11:19,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137125781] [2024-11-09 05:11:19,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:11:19,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776612023] [2024-11-09 05:11:19,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776612023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:11:19,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:11:19,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:11:19,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414791991] [2024-11-09 05:11:19,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:11:19,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:11:19,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:11:19,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:11:19,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:11:19,293 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:11:19,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:11:19,420 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2024-11-09 05:11:19,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:11:19,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 20 [2024-11-09 05:11:19,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:11:19,421 INFO L225 Difference]: With dead ends: 30 [2024-11-09 05:11:19,422 INFO L226 Difference]: Without dead ends: 27 [2024-11-09 05:11:19,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:11:19,424 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:11:19,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 66 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:11:19,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-09 05:11:19,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-09 05:11:19,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 05:11:19,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2024-11-09 05:11:19,432 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 20 [2024-11-09 05:11:19,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:11:19,433 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2024-11-09 05:11:19,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:11:19,433 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2024-11-09 05:11:19,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 05:11:19,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:19,435 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:11:19,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:11:19,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:11:19,636 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:11:19,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:19,637 INFO L85 PathProgramCache]: Analyzing trace with hash 2136107853, now seen corresponding path program 1 times [2024-11-09 05:11:19,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:11:19,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672051504] [2024-11-09 05:11:19,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:19,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:11:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:11:19,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1814325058] [2024-11-09 05:11:19,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:19,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:11:19,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:11:19,708 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:11:19,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:11:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:20,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 05:11:20,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:35,946 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:11:35,946 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:11:38,550 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:11:38,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:11:38,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672051504] [2024-11-09 05:11:38,552 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:11:38,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814325058] [2024-11-09 05:11:38,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814325058] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:11:38,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1527347321] [2024-11-09 05:11:38,580 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-09 05:11:38,581 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:11:38,585 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:11:38,590 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:11:38,591 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:11:41,036 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 129 for LOIs [2024-11-09 05:11:42,051 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-09 05:11:42,054 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:12:11,188 WARN L286 SmtUtils]: Spent 10.62s on a formula simplification. DAG size of input: 129 DAG size of output: 126 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:12:26,356 WARN L286 SmtUtils]: Spent 10.15s on a formula simplification. DAG size of input: 131 DAG size of output: 128 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:12:42,224 WARN L286 SmtUtils]: Spent 8.73s on a formula simplification. DAG size of input: 124 DAG size of output: 121 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:12:42,385 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '435#(and (<= 1 |#StackHeapBarrier|) (= |__VERIFIER_assert_#in~cond| 0) (exists ((|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_13| Int) (|v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_23| Int) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13| Int) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_21| Int) (|v_ULTIMATE.start_main_~v~0#1_BEFORE_CALL_13| Int) (|v_ULTIMATE.start_main_~u~0#1_BEFORE_CALL_13| Int)) (and (<= 2 ~counter~0) (not (= (mod (+ (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_13| |v_ULTIMATE.start_main_~v~0#1_BEFORE_CALL_13|) (* |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13| |v_ULTIMATE.start_main_~u~0#1_BEFORE_CALL_13|)) 4294967296) (* (mod (* |v_ULTIMATE.start_main_~b~0#1_BEFORE_CALL_23| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_21|) 2147483648) 2))) (exists ((|v_ULTIMATE.start_main_~u~0#1_29| Int) (|v_ULTIMATE.start_main_~y~0#1_31| Int) (|v_ULTIMATE.start_main_~x~0#1_31| Int) (|v_ULTIMATE.start_main_~v~0#1_29| Int)) (and (not (= (mod |v_ULTIMATE.start_main_~x~0#1_31| 4294967296) (mod |v_ULTIMATE.start_main_~y~0#1_31| 4294967296))) (or (and (<= (mod |v_ULTIMATE.start_main_~x~0#1_31| 4294967296) (mod |v_ULTIMATE.start_main_~y~0#1_31| 4294967296)) (= |v_ULTIMATE.start_main_~v~0#1_29| |v_ULTIMATE.start_main_~v~0#1_BEFORE_CALL_13|) (= |v_ULTIMATE.start_main_~u~0#1_BEFORE_CALL_13| (+ |v_ULTIMATE.start_main_~v~0#1_29| |v_ULTIMATE.start_main_~u~0#1_29|)) (= |v_ULTIMATE.start_main_~x~0#1_31| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13|) (= |v_ULTIMATE.start_main_~y~0#1_31| (+ |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_13| |v_ULTIMATE.start_main_~x~0#1_31|))) (and (= |v_ULTIMATE.start_main_~v~0#1_BEFORE_CALL_13| (+ |v_ULTIMATE.start_main_~v~0#1_29| |v_ULTIMATE.start_main_~u~0#1_29|)) (<= (+ (mod |v_ULTIMATE.start_main_~y~0#1_31| 4294967296) 1) (mod |v_ULTIMATE.start_main_~x~0#1_31| 4294967296)) (= |v_ULTIMATE.start_main_~u~0#1_BEFORE_CALL_13| |v_ULTIMATE.start_main_~u~0#1_29|) (= (+ |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13| |v_ULTIMATE.start_main_~y~0#1_31|) |v_ULTIMATE.start_main_~x~0#1_31|) (= |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_13| |v_ULTIMATE.start_main_~y~0#1_31|))))))) (<= ~counter~0 100))' at error location [2024-11-09 05:12:42,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:12:42,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:12:42,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 13 [2024-11-09 05:12:42,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264086346] [2024-11-09 05:12:42,387 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:12:42,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:12:42,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:42,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:12:42,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=649, Unknown=12, NotChecked=0, Total=756 [2024-11-09 05:12:42,391 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 5 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-09 05:12:49,255 WARN L286 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 41 DAG size of output: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:12:51,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:51,613 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2024-11-09 05:12:51,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:12:51,614 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 5 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 28 [2024-11-09 05:12:51,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:51,615 INFO L225 Difference]: With dead ends: 32 [2024-11-09 05:12:51,615 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 05:12:51,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 56 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 70.5s TimeCoverageRelationStatistics Valid=115, Invalid=803, Unknown=12, NotChecked=0, Total=930 [2024-11-09 05:12:51,617 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:51,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 101 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 05:12:51,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 05:12:51,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 05:12:51,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:12:51,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 05:12:51,619 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2024-11-09 05:12:51,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:51,620 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 05:12:51,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 5 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-09 05:12:51,620 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 05:12:51,621 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 05:12:51,627 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 05:12:51,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:12:51,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:51,830 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-09 05:12:51,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 05:12:54,544 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:12:54,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:12:54 BoogieIcfgContainer [2024-11-09 05:12:54,571 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:12:54,571 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:12:54,571 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:12:54,572 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:12:54,575 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:11:18" (3/4) ... [2024-11-09 05:12:54,577 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 05:12:54,580 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-09 05:12:54,580 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-09 05:12:54,584 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-09 05:12:54,584 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-09 05:12:54,585 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 05:12:54,585 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 05:12:54,585 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 05:12:54,678 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:12:54,682 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 05:12:54,682 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:12:54,683 INFO L158 Benchmark]: Toolchain (without parser) took 97625.63ms. Allocated memory was 180.4MB in the beginning and 239.1MB in the end (delta: 58.7MB). Free memory was 143.9MB in the beginning and 156.7MB in the end (delta: -12.8MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2024-11-09 05:12:54,683 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory was 82.3MB in the beginning and 82.2MB in the end (delta: 25.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:12:54,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.25ms. Allocated memory is still 180.4MB. Free memory was 143.4MB in the beginning and 130.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 05:12:54,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.48ms. Allocated memory is still 180.4MB. Free memory was 130.8MB in the beginning and 129.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:12:54,684 INFO L158 Benchmark]: Boogie Preprocessor took 39.81ms. Allocated memory is still 180.4MB. Free memory was 129.1MB in the beginning and 128.2MB in the end (delta: 931.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:12:54,684 INFO L158 Benchmark]: RCFGBuilder took 476.54ms. Allocated memory is still 180.4MB. Free memory was 128.2MB in the beginning and 115.0MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 05:12:54,684 INFO L158 Benchmark]: TraceAbstraction took 96518.27ms. Allocated memory was 180.4MB in the beginning and 239.1MB in the end (delta: 58.7MB). Free memory was 114.1MB in the beginning and 161.9MB in the end (delta: -47.9MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2024-11-09 05:12:54,685 INFO L158 Benchmark]: Witness Printer took 111.07ms. Allocated memory is still 239.1MB. Free memory was 161.9MB in the beginning and 156.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:12:54,689 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory was 82.3MB in the beginning and 82.2MB in the end (delta: 25.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 425.25ms. Allocated memory is still 180.4MB. Free memory was 143.4MB in the beginning and 130.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.48ms. Allocated memory is still 180.4MB. Free memory was 130.8MB in the beginning and 129.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.81ms. Allocated memory is still 180.4MB. Free memory was 129.1MB in the beginning and 128.2MB in the end (delta: 931.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 476.54ms. Allocated memory is still 180.4MB. Free memory was 128.2MB in the beginning and 115.0MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 96518.27ms. Allocated memory was 180.4MB in the beginning and 239.1MB in the end (delta: 58.7MB). Free memory was 114.1MB in the beginning and 161.9MB in the end (delta: -47.9MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * Witness Printer took 111.07ms. Allocated memory is still 239.1MB. Free memory was 161.9MB in the beginning and 156.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 93.7s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 189 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 137 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 154 IncrementalHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 52 mSDtfsCounter, 154 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 74 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 70.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=2, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 18.5s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 519 SizeOfPredicates, 4 NumberOfNonLiveVariables, 182 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 52/58 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((((unsigned long long) a * b) % 2147483648) * 2) == (((__int128) ((unsigned long long) v * y) + ((unsigned long long) u * x)) % 4294967296)) && (b <= 65535)) && (1 <= b)) - ProcedureContractResult [Line: 8]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((cond != 0) && (counter == \old(counter))) - ProcedureContractResult [Line: 11]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (1 <= cond) Ensures: ((1 <= cond) && (counter == \old(counter))) RESULT: Ultimate proved your program to be correct! [2024-11-09 05:12:54,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b5ad2bd-f78a-49a4-bcf7-1a603fc33984/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE